A catalyst

A

Increases the average kinetic energy of reaction moelcules

B

Decreases the activation energy

C

Alters the reaction mechanism

D

Decreases the frequency of collisions of reacting species.

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R G PUBLICATION-CHEMICAL KINETICS-EXERCISE
  1. For an endothermic reaction, where DeltaH represents the enthalpy of ...

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  2. The rate constant, the activation energy and the Arrhenius parameter o...

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  3. A catalyst

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  4. Which one of the following is true in case of catalyst?

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  5. Which of the following factors is helpful for effective collision betw...

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  6. What is the rate of a reaction?

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  7. Differentiat between instantaneous rate and average rate of a reaction...

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  8. For a reaction the rate of given by -1/2(Delta[HI])/(Deltat)=(Delta...

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  9. Describe the rate law.

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  10. Give an example of Bimolecular reaction.

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  11. Show the rate of the following reaction in terms of partial pressure o...

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  12. In a reaction 2A rarr P the Conc of A decreases from 0.5molL^(-1) to 0...

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  13. What is zero order reaction?

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  14. Give an example each from first order and zero order reaction.

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  15. For the following radioactive reaction 88^226 Ra rarr 2^4 He+86^222 Rn...

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  16. Write the integrated rate law and half life for a zero order reaction.

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  17. Give an example of pseudo first order reaction.

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  18. A plot of log[R0]/[R] vs time is a straight line passing through origi...

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  19. Write the Arrhenius equation regarding the dependence of rate constant...

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  20. The graph of logK vs X is linear with a slop = -E/(2.303R). What is X?

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